Jones resigned Thursday after it was learned he also was chief security and integrity officer at Detroit's water department, about 70 miles away.

Brown said there is nothing yet to indicate Jones was not working full-time in Flint. Brown hired him in April. A foundation grant paid Jones' $135,000 Flint salary.

Despite a union official's call for Jones also to resign in Detroit, Water and Sewerage Department director Sue McCormick tells the Detroit Free Press that she will not ask him to step down from his $138,750 per year job.